Air Safety Group Urged Tougher Battery Tests

By

Andy Pasztor

Updated Jan. 27, 2013 10:32 p.m. ET

Shortly after the Federal Aviation Administration issued safety rules in 2007 for using lithium-ion batteries on Boeing Co.'s 787 Dreamliner jets, an industry standards-setting group called for stricter testing to prevent battery fires on aircraft.

Boeing and FAA officials decided that since design and testing of the plane was so far along, mandating the tougher standards would disrupt years of joint safety work and unfairly delay...